If it were ME, I'd use nail polish remover and quickly rinse it with water afterward (wet washcloth maybe). I'm not sure there's any other way to get it off unless you just leave it be and it will come off on it's own eventually.

DD just got nail polish on her face right below her nose last week when she scratched with wet nails. We are now holding off on nail polish for awhile.

Other than natural soap (works so much better than detergent-based soaps even on things like silk-screen block-out fluid which can be very difficult to remove, ime), I'd try an oil like coconut or olive oil.

Well, I've been absent for 8 months, and during that time, it turns out that I have completely transformed. You are all precious. Thank you for being here and sharing your lives. You are truly a gift. Jan. 23, 2012